Class: VTTFile

Inherits:
Object
  • Object
show all
Defined in:
lib/vtt2ass/vtt_file.rb

Overview

This class defines a VTT subtile file.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_path, width, height) ⇒ VTTFile

Creates a new VTTFile instance and assigns the default values of instance variables.



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# File 'lib/vtt2ass/vtt_file.rb', line 12

def initialize(file_path, width, height)
  @title = File.basename(file_path).gsub('.vtt', '')
  @lines = []
  separator = determine_line_ending(file_path) ? "\n\n" : "\r\n\r\n"
  count = 0
  style_count = 1
  File.foreach(file_path, separator) do |paragraph|
    paragraph = paragraph.rstrip.gsub(/[\r\n]/, "\n")
    unless paragraph.eql? ''
      vtt_line = VTTLine.new(paragraph, width, height)
      if vtt_line.style.eql?('Main') &&
         !vtt_line.params.to_s.empty? &&
         (!vtt_line.params.to_s.eql?('align:middle') &&
         !vtt_line.params.to_s.eql?('align:center'))
        vtt_line.style = "Style#{style_count}"
        style_count += 1
      end
      @lines.push(vtt_line)
      count += 1
    end
  end
  @lines.shift
end

Instance Attribute Details

#lines ⇒ Object

Returns the value of attribute lines.



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# File 'lib/vtt2ass/vtt_file.rb', line 8

def lines
  @lines
end

Instance Method Details

#determine_line_ending(file_path) ⇒ Object

This method determines the line ending character to use as a separator.



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# File 'lib/vtt2ass/vtt_file.rb', line 38

def determine_line_ending(file_path)
  File.open(file_path, 'r') do |file|
    return file.readline[/\r?\n$/] == "\n"
  end
end

#to_s ⇒ Object

This method concatenates the object data in the right order for a string output.



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# File 'lib/vtt2ass/vtt_file.rb', line 55

def to_s
  "WEBVTT\n\n\n#{@lines}"
end

#write_to_file(file_path) ⇒ Object

This method writes the content of the VTTFile object into a file path that is provided.



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# File 'lib/vtt2ass/vtt_file.rb', line 46

def write_to_file(file_path)
  File.open(file_path, 'w') do |line|
    line.print "\ufeff"
    line.puts to_s
  end
end